<template>
  <div class="login_body">
    <div class="bg" />
    <div class="box">
      <div class="title">智慧园区-登录</div>
      <el-form ref="form" :model="userInfo" :rules="rules">
        <el-form-item
          label="账号"
          prop="username"
        >
          <!-- el-form-item组件通过prop属性指定要使用的校验规则 -->
          <el-input v-model="userInfo.username" />
        </el-form-item>

        <el-form-item
          label="密码"
          prop="password"
        >
          <el-input v-model="userInfo.password" type="password" />
        </el-form-item>

        <el-form-item prop="remember">
          <el-checkbox v-model="userInfo.remember">记住我</el-checkbox>
        </el-form-item>

        <el-form-item>
          <el-button type="primary" class="login_btn" @click="doLogin">登录</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
import { FORMDATA_KEY } from '@/constants/KEY'

export default {
  name: 'Login',
  data() {
    return {
      userInfo: {
        username: '',
        password: '',
        remember: ''
      },
      rules: {
        username: [{ required: true, message: '请输入账号', trigger: 'blur' }],
        password: [{ required: true, trigger: 'blur',
          validator(rule, value, callback) {
            if (value.length < 6 || value.length > 30) {
              callback(new Error('密码长度位6-30位'))
            }
          }
        }]
      }
    }
  },
  created() {
    const formData = JSON.parse(localStorage.getItem(FORMDATA_KEY))
    if (formData) {
      this.userInfo = {
        ...this.userInfo,
        ...formData
      }
    }
  },
  methods: {
    // 表单统一校验
    async doLogin() {
      await this.$refs.form.validate(isOK => {
        if (!isOK) return false
      })
      // 调用vuex中的action
      await this.$store.dispatch('user/doLogin', this.userInfo)
      // 登录成功判断要不要记住账号密码
      if (this.userInfo.remember) {
        // 记住账号密码
        localStorage.setItem(FORMDATA_KEY, JSON.stringify({
          username: this.userInfo.username,
          password: this.userInfo.password
        }))
      } else {
        // 删除账号密码
        localStorage.removeItem(FORMDATA_KEY)
      }
      this.$router.push('/')
    }
  }
}

</script>

<style scoped lang="scss">
  .login_body {
    display: flex;
  }
  .bg {
    width: 60vw;
    height: 100vh;
    background: url('~@/assets/login-bg.svg') no-repeat;
    background-position: right top;
    background-size: cover;
  }
  .box {
    margin: 200px 10% 0;
    flex: 1;
    .title {
      padding-bottom: 76px;
      font-size: 26px;
      font-weight: 500;
      color: #1e2023;
    }
    ::v-deep() {
      .ant-form-item {
        display: flex;
        margin-bottom: 62px;
        flex-direction: column;
      }
      .ant-form-item-label label {
        font-size: 16px;
        color: #8b929d;
      }
      .ant-input,
      .ant-input-password {
        border-radius: 8px;
      }
    }
  }
  .login_btn{
    width: 100%;
  }
</style>
